The following are also strings:
"0123456789"
"This is a string"
"abc123"
"1 + 1 = 2"
"!@#$%^&*()"
Commands
There are also special functions called "commands" (also called "instructions"). A "command"
tells the QBasic interpreter to do something.
The PRINT command tells the QBasic interpreter to print something to the screen. In this case,
the interpreter printed "Hello World!".
TIP: Instead of typing PRINT, you can enter a
question mark. For example:
?"Hello World!"With the PRINT command, you can also print numbers to the screen. Delete the current program
(unless you already have) and write the following:
PRINT 512 (or ?512 )
Press F5 to run the program. The program outputs:
512
Expressions
An expression is something the interpreter calculates (or evaluates). Such as:
1 + 1 (returns 2)
100 - 47 (returns 53)
3 34 (returns 102)
80 / 4 (returns 20)
(100 3) + 56 (returns 356)